CN102323701B - Stereoscopic display device - Google Patents
Stereoscopic display device Download PDFInfo
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- CN102323701B CN102323701B CN 201110306784 CN201110306784A CN102323701B CN 102323701 B CN102323701 B CN 102323701B CN 201110306784 CN201110306784 CN 201110306784 CN 201110306784 A CN201110306784 A CN 201110306784A CN 102323701 B CN102323701 B CN 102323701B
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Abstract
The invention relates to a stereoscopic display device. The stereoscopic display device is characterized by comprising a display panel and a liquid crystal lens, wherein the liquid crystal lens is positioned on the display panel and comprises a first substrate, a second substrate, a liquid crystal layer and a plurality of electrodes, wherein the first substrate is provided with a first surface facing the display panel and a second surface positioned on the opposite side of the first surface; the liquid crystal layer is provided with a plurality of liquid crystal molecules; the liquid crystal layer is positioned between the first substrate and the second substrate; the plurality of the electrodes are formed on the second surface of the first substrate, wherein the electrodes are arranged in parallel substantially; and the included angles between the directions of the axial lines of the electrodes and the alignment directions of the liquid crystal molecules are 2 to 45 degrees or 135 to 178 degrees. The stereoscopic display device has a better display effect.
Description
Technical field
The present invention relates to a kind of 3 d display device, and particularly about a kind of 3 d display device with liquid crystal lens.
Background technology
In recent years, the lifting of image display is the not only color saturation of picture disply and resolution, and further stress presenting of its stereoscopic visual effect.3 d display device is broadly divided into glass-type stereo display device and autostereoscopic display apparatus at present.In glasses formula 3 d display device, the audience must put on special spectacles, and reaches by different color chips or shutter speed the 3-D effect that image segmentation and video overlap, and autostereoscopic display apparatus can be subdivided into optical gate type and lens type display device.
The principle of optical gate type display device is to utilize the sequential concept to control each optical gate that interlocks in twos to open and close the start pattern, utilize the left and right grating according to different frequency respectively with the picture continuity be sent to people's right and left eyes, make human brain be judged to be a stereopsis on image is understood.On the other hand, the lens type 3 d display device is before liquid crystal lens is arranged at display panel, and each lens unit in liquid crystal lens shows that with two picture element is parallel corresponding respectively, when backlight passes the picture element of display panel, its image refracts to respectively the right and left eyes of human body by each lens unit, make image be folded as a stereopsis in audience's brain.
Yet, the Polarizer penetrating shaft direction that need be parallel to display panel due to the liquid crystal alignment direction of liquid crystal lens, just can allow the lens type 3 d display device have display effect more clearly, that is to say that the Polarizer of display panel has limited the liquid crystal alignment direction of liquid crystal lens.In addition, also need the arrange in pairs or groups picture element of display panel of the electrode direction of liquid crystal lens is arranged and picture coding, makes electrode direction and liquid crystal alignment direction can have angle.Thus, near the gap material that is positioned at electrode causes that easily the arrangement of liquid crystal molecule is abnormal, and these Liquid Crystal Molecules Alignment abnormal zones can affect the left and right spectrophotometric result of lens unit, and causes the image quality lack of defination of stereopsis.
Summary of the invention
The object of the present invention is to provide a kind of 3 d display device, this device is a kind of better display effect 3 d display device that has.
The invention is characterized in: a kind of 3 d display device comprises display panel and liquid crystal lens.Liquid crystal lens is positioned on display panel.Liquid crystal lens comprises first substrate, second substrate, liquid crystal layer and electrode.First substrate has the first surface and the second surface that is positioned at the first surface opposition side in the face of display panel.Liquid crystal layer has liquid crystal molecule, and liquid crystal layer is between first substrate and second substrate.Electrode is formed on the second surface of first substrate.Electrode almost parallel ground is arranged, and the alignment direction of the axis direction of electrode and liquid crystal molecule has 2 degree to the angles of 45 degree or 135 degree to 178 angles of spending.
In an embodiment of the present invention, wherein above-mentioned display panel comprises Polarizer in the face of the first surface of first substrate, and Polarizer has a plurality of penetrating shafts and is arranged in parallel.
In an embodiment of the present invention, wherein the alignment direction of above-mentioned liquid crystal molecule is parallel to the axis direction of penetrating shaft.
In an embodiment of the present invention, wherein above-mentioned liquid crystal lens more comprises on the second surface that the first alignment film is formed at first substrate, and coated electrode.
In an embodiment of the present invention, wherein above-mentioned liquid crystal lens more comprises the common electrode layer and is formed at above second substrate a side to liquid crystal layer.
In an embodiment of the present invention, wherein above-mentioned 3 d display device more comprises voltage source electric connection electrode and common electrode layer, and the arrangement of eliminating the part liquid crystal molecule in order to formation overdrive voltage in liquid crystal layer is abnormal.
In an embodiment of the present invention, wherein above-mentioned liquid crystal lens comprises more that the second alignment film is formed on second substrate and cover the common electrode layer.
In an embodiment of the present invention, wherein above-mentioned liquid crystal lens more comprises the gap material and is arranged in liquid crystal layer.
In an embodiment of the present invention, wherein the material of above-mentioned electrode or common electrode layer comprises indium tin oxide (indium tin oxide; ITO).
In an embodiment of the present invention, wherein the thickness of above-mentioned liquid crystal layer is more than or equal to 9 μ m.
In the above-mentioned embodiment of the present invention, because the alignment direction of the axis direction of electrode and liquid crystal molecule has the obtuse angle angles of 2 degree to the angles of 45 degree or 135 degree to 178 degree, it is front that above-mentioned condition learns that via experiment the fabricator can enter stable operation voltage (for example 0.15V) at liquid crystal lens, first utilize overdrive voltage (for example 10V) eliminate near electrode between the caused Liquid Crystal Molecules Alignment of gap material abnormal.In addition, when learning that via the control group of experiment alignment direction when the axis direction of electrode and liquid crystal molecule has the angle that the angles or 45 of 63.43 degree spend, and can't utilize overdrive voltage eliminate electrode neighbouring between the caused Liquid Crystal Molecules Alignment of gap material abnormal.
The invention has the advantages that: compare with existing 3 d display device, this 3 d display device is by the design of the alignment direction of the axis direction of electrode and liquid crystal molecule, can be before liquid crystal lens enters stable operation voltage, first abnormal with near the caused Liquid Crystal Molecules Alignment of gap material eliminate electrode greater than the overdrive voltage of stable operation voltage between, make 3 d display device have better display effect.
Description of drawings
Fig. 1 is the front-view schematic diagram of 3 d display device according to an embodiment of the present invention.
Fig. 2 is the part sectioned view of the 3 d display device of Fig. 1.
Fig. 3 is the axis direction schematic diagram of the electrode of Fig. 1.
Fig. 4 is the alignment direction schematic diagram of the liquid crystal molecule of Fig. 1.
Fig. 5 is the combination schematic diagram of the liquid crystal molecule of the electrode of Fig. 3 and Fig. 4.
Fig. 6 is the front-view schematic diagram of the 3 d display device of another embodiment according to the present invention.
Fig. 7 is the axis direction schematic diagram of the electrode of Fig. 6.
Fig. 8 is the alignment direction schematic diagram of the liquid crystal molecule of Fig. 6.
Fig. 9 is the combination schematic diagram of the liquid crystal molecule of the electrode of Fig. 7 and Fig. 8.
Figure 10 to Figure 13 is liquid crystal layer legend under optical microscope when different driving voltage of Fig. 9.
Figure 14 is the axis direction schematic diagram of the electrode of the first control group.
Figure 15 is the alignment direction schematic diagram of the liquid crystal molecule of the first control group.
Figure 16 is the combination schematic diagram of the liquid crystal molecule of the electrode of Figure 14 and Figure 15.
Figure 17 to Figure 20 is liquid crystal layer legend under optical microscope when different driving voltage of Figure 16.
Figure 21 is the axis direction schematic diagram of the electrode of the second control group.
Figure 22 is the alignment direction schematic diagram of the liquid crystal molecule of the second control group.
Figure 23 is the combination schematic diagram of the liquid crystal molecule of the electrode of Figure 21 and Figure 22.
Figure 24 to Figure 27 is liquid crystal layer legend under optical microscope when different driving voltage of Figure 23.
Primary clustering symbol description in figure: 100: 3 d display device; 110: display panel; 112: Polarizer; 113: penetrating shaft; 114: picture element; 120: liquid crystal lens; 121: first surface; 122: first substrate; 123: second surface; 124: second substrate; 125: lens unit; 126: liquid crystal layer; 127: liquid crystal molecule; 128: electrode; 130: voltage source; 129: dotted line; 131: direction; 132: the first alignment films; 134: the second alignment films; 136: the common electrode layer; 140: the beholder; 150: dotted line; 160: the gap material; 164: liquid crystal arrangement; 162: the zone; D: thickness.
Embodiment
For above-mentioned feature and advantage of the present invention can be become apparent, embodiment cited below particularly, and coordinate appended graphic being described in detail below.
Below will be with graphic exposure a plurality of embodiments of the present invention, as clearly stated, the details on many practices will be explained in the following description.Yet, should be appreciated that, the details on these practices does not use to limit the present invention.That is to say, in part embodiment of the present invention, the details on these practices is non-essential.In addition, for the purpose of simplicity of illustration, structures that some are existing habitual and assembly graphic middle will take the mode of simple signal as.
Fig. 1 is the front-view schematic diagram of 3 d display device 100 according to an embodiment of the present invention.Fig. 2 is the part sectioned view of the 3 d display device 100 of Fig. 1.Consult simultaneously Fig. 1 and Fig. 2,3 d display device 100 comprises display panel 110 and liquid crystal lens 120.Liquid crystal lens 120 is positioned on display panel 110.Liquid crystal lens 120 comprises first substrate 122, second substrate 124, liquid crystal layer 126 and electrode 128.First substrate 122 has the first surface 121 and the second surface 123 that is positioned at first surface 121 opposition sides in the face of display panel 110.Liquid crystal layer 126 has liquid crystal molecule 127, and liquid crystal layer 126 is between first substrate 122 and second substrate 124.Electrode 128 is formed on the second surface 123 of first substrate 122, and electrode 128 almost parallel ground arrangements.In this article, the error that mean to make all " roughly ", close first chat bright.
In addition, lens unit 125 is defined as the zone between Fig. 2 two dotted lines, and electrode 128 is positioned at the both sides of the edge of lens unit 125.Lens unit 125 and two shows that picture element 114 almost parallels are corresponding, when backlight (not being illustrated in figure) passes the picture element 114 of display panel 110, the image that display panel 110 produces can refract to respectively beholder 140 right and left eyes by plural lenses unit 125, make this image be folded as a stereopsis in beholder's 140 brains.
In the following description, the assembly of having narrated in the above-described embodiment and the connected mode of each inter-module will no longer repeat to give unnecessary details, only replenished with regard to the alignment direction of liquid crystal molecule 127 technology contents and the experimental result relevant to the axis direction of electrode 128, close first chat bright.
Fig. 3 is the axis direction schematic diagram of the electrode 128 of Fig. 1.Consult simultaneously Fig. 1 and Fig. 3, the axis direction of electrode 128 is with dotted line 129 expression, and dotted line 129 and horizontal dotted line 150 have the angles of 108.43 degree, and all electrodes 128 are arranged in liquid crystal lens 120 with this angle of inclination almost parallel.
Fig. 4 is the alignment direction schematic diagram of the liquid crystal molecule 127 of Fig. 1.Consult simultaneously Fig. 1 and Fig. 4, in the present embodiment, the penetrating shaft 113 of Polarizer 112 has the angle of inclination of 135 degree.The alignment direction of the liquid crystal molecule 127 of close first substrate 122 (seeing Fig. 2) is 135 degree, the namely angle of horizontal dotted line 150 and direction 131.In addition, the alignment direction of the liquid crystal molecule 127 of the alignment direction of the liquid crystal molecule 127 of close first substrate 122 (seeing Fig. 2) and close second substrate 124 is for reverse, so the alignment direction of the liquid crystal molecule 127 of close second substrate 124 is-45 degree (not being illustrated in figure).All liquid crystal molecules 127 are arranged in liquid crystal lens 120 with alignment direction-45 degree or 135 with spending almost parallels.
Fig. 5 is the electrode 128 of Fig. 3 and the combination schematic diagram of the liquid crystal molecule 127 of Fig. 4.As shown in the figure, the alignment direction of the axis direction of electrode 128 and liquid crystal molecule 127 has the angle of acute side 26.57 degree or the angle of obtuse angle side 153.43 degree, the namely angle of dotted line 129 and direction 131 in Fig. 5.
Fig. 6 is the front-view schematic diagram of the 3 d display device 100 of another embodiment according to the present invention.Fig. 7 is the axis direction schematic diagram of the electrode 128 of Fig. 6.Consult simultaneously Fig. 6 and Fig. 7, the axis direction of electrode 128 is with dotted line 129 expression, and dotted line 129 and horizontal dotted line 150 have the angles of 71.57 degree, and all electrodes 128 are arranged in liquid crystal lens 120 with this angle of inclination almost parallel.
Fig. 8 is the alignment direction schematic diagram of the liquid crystal molecule 127 of Fig. 6.Consult simultaneously Fig. 6 and Fig. 8, in the present embodiment, the penetrating shaft 113 of Polarizer 112 has the angle of inclination of 45 degree.The alignment direction of the liquid crystal molecule 127 of close first substrate 122 (seeing Fig. 2) is 45 degree, the namely angle of horizontal dotted line 150 and direction 131.In addition, near the alignment direction of the liquid crystal molecule 127 of first substrate 122 (seeing Fig. 2) with near the alignment direction of the liquid crystal molecule 127 of second substrate 124 for oppositely, therefore the alignment direction near the liquid crystal molecule 127 of second substrate 124 is 225 degree (not being illustrated in figure).All liquid crystal molecules 127 are arranged in liquid crystal lens 120 with alignment direction 45 degree or 225 with spending almost parallels.
Fig. 9 is the electrode 128 of Fig. 7 and the combination schematic diagram of the liquid crystal molecule 127 of Fig. 8.As shown in the figure, the alignment direction of the axis direction of electrode 128 and liquid crystal molecule 127 has the angle of acute side 26.57 degree or the angle of obtuse angle side 153.43 degree, the namely angle of dotted line 129 and direction 131 in Fig. 9.
Figure 10 to Figure 13 is liquid crystal layer 126 legend under optical microscope when different driving voltage of Fig. 9.As shown in the figure, gap material 160 is arranged in liquid crystal layer 126, and the particle diameter of gap material 160 is approximately 9 μ m.
Consult simultaneously Fig. 2.In Figure 10, voltage source 130 not yet provides driving voltage.In Figure 11 figure, liquid crystal molecule 127 is driven by the voltage of 5V, can affect the normal alignment of liquid crystal molecule 127 but part is positioned at the gap material 160 of electrode 128 near zones 162, and make liquid crystal molecule 127 present the abnormal liquid crystal arrangement 164 of V font.Thus, liquid crystal arrangement 164 can affect the right and left light effect of lens unit 125, and causes the image quality lack of defination of 3 d display device 100.In Figure 12, then driving voltage is increased to 10V, this moment, the liquid crystal arrangement 164 of V font merged disappearance because of overdrive voltage.In Figure 13, at last driving voltage is reduced to 5V from 10V, this moment, the liquid crystal arrangement 164 of V font no longer occurred.
Therefore, it is front that the fabricator can enter stable operation voltage (for example 0.15V) at liquid crystal lens 120, first utilize overdrive voltage (for example 10V) eliminate near electrode 128 between the caused abnormal liquid crystal arrangement 164 of gap material 160.
Yet, be not near the caused abnormal liquid crystal arrangement 164 of gap material 160 between the angle of the alignment direction of the axis direction of all electrodes 128 and liquid crystal molecule 127 all can be eliminated electrode 128 with overdrive voltage.In the following description, illustrate when the angle of the alignment direction of the axis direction of electrode 128 and liquid crystal molecule 127 when 45 degree to 90 degree or 90 degree are spent to 135 with two control groups, and near the caused abnormal liquid crystal arrangement 164 of gap material 160 between can't eliminating electrode 128 with overdrive voltage.
Figure 14 is the axis direction schematic diagram of the electrode 128 of the first control group.Figure 15 is the alignment direction schematic diagram of the liquid crystal molecule 127 of the first control group.Consult simultaneously Figure 14 and Figure 15, the axis direction of electrode 128 is with dotted line 129 expressions, and dotted line 129 has 108.43 angles of spending with horizontal dotted line 150.The alignment direction of liquid crystal molecule 127 is 45 degree, the namely angle of horizontal dotted line 150 and direction 131.
Figure 16 is the electrode 128 of Figure 14 and the combination schematic diagram of the liquid crystal molecule 127 of Figure 15.As shown in the figure, the alignment direction of the axis direction of electrode 128 and liquid crystal molecule 127 has the angle of acute side 63.43 degree or the angle of obtuse angle side 116.57 degree, the namely angle of dotted line 129 and direction 131 in Figure 16.
Figure 17 to Figure 20 is liquid crystal layer 126 legend under optical microscope when different driving voltage of Figure 16.Consult simultaneously Fig. 2.In Figure 17, voltage source 130 not yet provides driving voltage.In Figure 18, liquid crystal molecule 127 is driven by the voltage of 5V, can affect the normal alignment of liquid crystal molecule 127 but part is positioned at the gap material 160 of electrode 128 near zones 162, and make liquid crystal molecule 127 present the abnormal liquid crystal arrangement 164 of L font.Thus, liquid crystal arrangement 164 can affect the right and left light effect of lens unit 125, and causes the image quality lack of defination of 3 d display device 100.In Figure 19, then driving voltage is increased to 10V, this moment, the liquid crystal arrangement 164 of L font can not merge disappearance because of overdrive voltage.In Figure 13, at last driving voltage is reduced to 5V from 10V, this moment, the liquid crystal arrangement 164 of L font still existed.
Figure 21 is the axis direction schematic diagram of the electrode 128 of the second control group.Figure 22 is the alignment direction schematic diagram of the liquid crystal molecule 127 of the second control group.Consult simultaneously Figure 21 and Figure 22, the axis direction of electrode 128 is with dotted line 129 expressions, and dotted line 129 has 90 angles of spending with horizontal dotted line 150.The alignment direction of liquid crystal molecule 127 is 45 degree, the namely angle of horizontal dotted line 150 and direction 131.
Figure 23 is the electrode 128 of Figure 21 and the combination schematic diagram of the liquid crystal molecule 127 of Figure 22.As shown in the figure, the alignment direction of the axis direction of electrode 128 and liquid crystal molecule 127 has the angle of acute side 45 degree or the angle of obtuse angle side 135 degree, the namely angle of dotted line 129 and direction 131 in Figure 23.
Figure 24 to Figure 27 is liquid crystal layer 126 legend under optical microscope when different driving voltage of Figure 23.Consult simultaneously Fig. 2.In Figure 24, voltage source 130 not yet provides driving voltage.In Figure 25, liquid crystal molecule 127 is driven by the voltage of 5V, can affect the normal alignment of liquid crystal molecule 127 but part is positioned at the gap material 160 of electrode 128 near zones 162, and make liquid crystal molecule 127 present the abnormal liquid crystal arrangement 164 of ㄥ font.Thus, liquid crystal arrangement 164 can affect the right and left light effect of lens unit 125, and causes the image quality lack of defination of 3 d display device 100.In Figure 26, then driving voltage is increased to 10V, this moment, the liquid crystal arrangement 164 of ㄥ font can not merge disappearance because of overdrive voltage.In Figure 27, at last driving voltage is reduced to 5V from 10V, this moment, the liquid crystal arrangement 164 of ㄥ font still existed.
Compare with existing 3 d display device, the axis direction of the electrode of this 3 d display device and the alignment direction of liquid crystal molecule have 2 degree to the angle or 135 of 45 degree and spend to the angles of 178 degree, it is front that the fabricator can enter stable operation voltage (for example 0.15V) in liquid crystal lens, first abnormal with near the caused Liquid Crystal Molecules Alignment of gap material eliminate electrode greater than the overdrive voltage (for example 10V) of stable operation voltage between, make 3 d display device have better display effect.
Although the present invention discloses as above with embodiment; so it is not to limit the present invention, anyly has the knack of this skill person, without departing from the spirit and scope of the present invention; when can be used for a variety of modifications and variations, so protection scope of the present invention is as the criterion when looking accompanying the claim person of defining.
Claims (7)
1. 3 d display device is characterized in that: comprise:
One display panel;
One liquid crystal lens is positioned on this display panel, comprises:
One first substrate has a first surface and a second surface that is positioned at this first surface opposition side in the face of this display panel;
One second substrate;
One liquid crystal layer has a plurality of liquid crystal molecules, and this liquid crystal layer is between this first substrate and this second substrate; And
Plurality of electrodes is formed on this second surface of this first substrate, and wherein those electrode almost parallel ground arrangements, and the alignment direction of the axis direction of those electrodes and those liquid crystal molecules have 2 degree to the angles or 135 of 45 degree and spend to the angles of 178 degree;
Wherein this liquid crystal lens more comprises:
One common electrode layer is formed on this second substrate, and faces a side of this liquid crystal layer,
A plurality of gaps material is arranged in this liquid crystal layer;
3 d display device more comprises:
One voltage source is electrically connected those electrodes and this common electrode layer, and the arrangement of eliminating those liquid crystal molecules of part in order to formation one overdrive voltage in this liquid crystal layer is abnormal.
2. 3 d display device according to claim 1, it is characterized in that: wherein this display panel comprises a Polarizer, and this Polarizer is in the face of this first surface of this first substrate, and this Polarizer has the penetrating shaft that plurality of parallel is arranged.
3. 3 d display device according to claim 2, it is characterized in that: wherein the alignment direction of those liquid crystal molecules is parallel to the axis direction of those penetrating shafts.
4. 3 d display device according to claim 1, it is characterized in that: wherein this liquid crystal lens more comprises:
One first alignment film is formed on this second surface of this first substrate, and covers those electrodes.
5. 3 d display device according to claim 1, it is characterized in that: wherein this liquid crystal lens more comprises:
One second alignment film is formed on this second substrate and covers this common electrode layer.
6. 3 d display device according to claim 1, it is characterized in that: wherein the material of those electrodes or this common electrode layer comprises indium tin oxide.
7. 3 d display device according to claim 1, it is characterized in that: wherein the thickness of this liquid crystal layer is more than or equal to 9 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110306784 CN102323701B (en) | 2011-10-12 | 2011-10-12 | Stereoscopic display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110306784 CN102323701B (en) | 2011-10-12 | 2011-10-12 | Stereoscopic display device |
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| CN102323701A CN102323701A (en) | 2012-01-18 |
| CN102323701B true CN102323701B (en) | 2013-06-05 |
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| CN 201110306784 Expired - Fee Related CN102323701B (en) | 2011-10-12 | 2011-10-12 | Stereoscopic display device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5832314B2 (en) * | 2012-01-20 | 2015-12-16 | 株式会社ジャパンディスプレイ | 3D display device |
| CN102928988B (en) * | 2012-11-06 | 2015-07-15 | 深圳市华星光电技术有限公司 | Three-dimensional display device, liquid crystal lens and driving method thereof |
| CN104238230B (en) * | 2014-09-02 | 2020-06-23 | 深圳超多维科技有限公司 | Liquid crystal lens and stereoscopic display device |
| CN105807498A (en) * | 2016-05-18 | 2016-07-27 | 京东方科技集团股份有限公司 | Display panel as well as production method and display device thereof |
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| KR101201848B1 (en) * | 2006-02-20 | 2012-11-15 | 삼성디스플레이 주식회사 | Stereo-scopic image conversion panel and stereo-scopic image display apparatus having the same |
| KR101649234B1 (en) * | 2009-12-30 | 2016-08-19 | 엘지디스플레이 주식회사 | Liquid Crystal Lens Electrically driven and Stereoscopy Display Device |
| TWI417575B (en) * | 2010-02-24 | 2013-12-01 | Chunghwa Picture Tubes Ltd | Electrically-driven liquid crystal lens and stereoscopic display using the same |
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